4 Carat Cushion Natural Diamond Prices Comparison
As of October 2026, 4 carat cushion natural diamonds in the 4.00–4.49 carat benchmark range usually range from $2,360 to $306,050, with an average price of $60,205.In the last month, prices for these diamonds are down 0.5%.Compare 239 verified listings across 10 retailers tracked by CaratRadar.
4 Carat Cushion Natural Diamond Market Overview
CaratRadar currently tracks 239 verified 4-carat cushion natural diamonds in the 4.00–4.49 carat benchmark range, listed across 10 online retailers. Prices in this segment range from $2,360 to $306,050, with an average asking price of $60,205 and a median of $58,241.
The price spread of $303,690 (99.2% from highest to lowest) highlights why comparing identical certified diamonds across multiple retailers matters. Two identical certified diamonds can differ by hundreds or even thousands of dollars depending on the retailer.
These figures use the same benchmark range throughout the page and are based on our latest daily market data, matched by certification lab and certificate number across retailers, so you are comparing the exact same diamond.
239 diamonds tracked in the 4.00–4.49 carat benchmark
Price range: $2,360 to $306,050
Average price: $60,205
Median price: $58,241
Available across 10 retailers
Savings potential: up to 99.2%
Price Range Overview
As of Oct 14, 2026Real market range for this carat, shape, and diamond type.
239
$2,360
$60,205
$58,241
$306,050
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers in the same benchmark range and open any listing for full details.
Save 25.7%GIA | 4.01ct | Cushion | J | SI2 | Excellent
From $18,353
Compare at $24,705
Save 11.1%IGI | 4.02ct | Cushion | K | VS1 | Ideal
From $20,107
Compare at $22,614
Save 18.3%GIA | 4.01ct | Cushion | L | SI1 | Excellent
From $20,419
Compare at $24,987
Save 12.6%GIA | 4ct | Cushion | I | SI2 | Good
From $21,324
Compare at $24,384
Save 18.7%GIA | 4.01ct | Cushion | L | SI1 | Excellent
From $21,699
Compare at $26,692
Save 23.5%GIA | 4ct | Cushion | J | SI2 | Good
From $22,199
Compare at $29,011
GIA | 4.01ct | Cushion | K | SI2 | Excellent
From $22,555
Compare at $22,986
Save 26.4%GIA | 4.02ct | Cushion | K | VS1 | Excellent
From $23,760
Compare at $32,295
GIA | 4.01ct | Cushion | L | VS2 | Excellent
From $24,022
Compare at $25,873
Save 14.1%GIA | 4.01ct | Cushion | J | SI2 | Ideal
From $24,895
Compare at $28,985
Save 23.7%GIA | 4.01ct | Cushion | L | VS2 | Excellent
From $25,949
Compare at $34,016
Save 20.6%GIA | 4.02ct | Cushion | J | VS2 | Excellent
From $26,559
Compare at $33,432
IGI | 4.01ct | Cushion | J | VS2 | Ideal
From $27,150
Compare at $28,478
Save 18%GIA | 4.07ct | Cushion | K | SI1 | Excellent
From $27,221
Compare at $33,200
GIA | 4.19ct | Cushion | L | VS1 | Excellent
From $27,272
Compare at $28,430
GIA | 4.03ct | Cushion | K | SI1 | Excellent
From $27,675
Compare at $29,521
GIA | 4.07ct | Cushion | K | VVS2 | Excellent
From $29,220
Compare at $29,629
GIA | 4.41ct | Cushion | J | SI1 | Excellent
From $29,610
Compare at $32,841
GIA | 4.06ct | Cushion | K | SI1 | Very Good
From $29,935
Compare at $31,880
GIA | 4.07ct | Cushion | L | VVS2 | Ideal
From $30,080
Compare at $31,414
Save 17.1%GIA | 4.07ct | Cushion | J | VVS2 | Excellent
From $30,555
Compare at $36,866
GIA | 4.01ct | Cushion | J | VS1 | Very Good
From $30,568
Compare at $31,001
Save 20%GIA | 4.02ct | Cushion | J | SI2 | Very Good
From $30,681
Compare at $38,335
Save 15.2%HRD | 4.01ct | Cushion | K | VVS2 | Excellent
From $30,832
Compare at $36,366
Save 20%GIA | 4.01ct | Cushion | K | SI1 | Good
From $31,413
Compare at $39,248
Save 17.1%GIA | 4.04ct | Cushion | K | VS2 | Excellent
From $31,969
Compare at $38,578
GIA | 4.03ct | Cushion | K | VS2 | Very Good
From $32,446
Compare at $35,547
Save 19.7%GIA | 4.02ct | Cushion | K | SI1 | Excellent
From $32,859
Compare at $40,923
GIA | 4.06ct | Cushion | K | SI1 | Excellent
From $33,000
Compare at $36,252
GIA | 4.01ct | Cushion | K | SI1 | Excellent
From $33,042
Compare at $33,045
Save 20.8%GIA | 4.02ct | Cushion | J | VVS1 | Ideal
From $33,271
Compare at $42,030
Save 13%GIA | 4ct | Cushion | H | SI2 | Ideal
From $33,587
Compare at $38,618
Save 24.1%GIA | 4.01ct | Cushion | E | SI2 | Good
From $34,177
Compare at $45,010
Save 17.2%GIA | 4.05ct | Cushion | J | SI2 | Excellent
From $34,271
Compare at $41,366
GIA | 4.04ct | Cushion | K | SI1 | Excellent
From $34,287
Compare at $37,968
Save 19.8%GIA | 4.02ct | Cushion | K | SI1 | Excellent
From $34,347
Compare at $42,809
GIA | 4.03ct | Cushion | J | SI1 | Excellent
From $34,500
Compare at $38,203
Save 17.2%GIA | 4.16ct | Cushion | J | SI2 | Good
From $34,554
Compare at $41,710
GIA | 4.11ct | Cushion | K | SI1 | Excellent
From $34,882
Compare at $38,625
Save 16.5%GIA | 4.01ct | Cushion | E | SI1 | Ideal
From $34,950
Compare at $41,837
Save 19.8%GIA | 4.02ct | Cushion | K | SI1 | Excellent
From $35,339
Compare at $44,066
GIA | 4.01ct | Cushion | K | SI1 | Very Good
From $35,500
Compare at $36,302
GIA | 4.03ct | Cushion | K | SI1 | Excellent
From $35,559
Compare at $35,984
GIA | 4.01ct | Cushion | J | SI2 | Excellent
From $36,060
Compare at $37,469
GIA | 4.05ct | Cushion | K | VS1 | Very Good
From $36,093
Compare at $39,463
Save 17.2%GIA | 4ct | Cushion | J | SI2 | Excellent
From $36,292
Compare at $43,813
Save 14.9%GIA | 4.04ct | Cushion | K | VS1 | Excellent
From $37,316
Compare at $43,865
Save 12.9%GIA | 4.06ct | Cushion | K | IF | Excellent
From $37,342
Compare at $42,866
Save 37.2%GIA | 4.01ct | Cushion | K | VS1 | Excellent
From $37,360
Compare at $59,522
GIA | 4.01ct | Cushion | J | VVS2 | Ideal
From $37,402
Compare at $38,284
Entry pricing in this benchmark range starts around $2,360.
What to Know When Shopping for 4 Carat Cushion Natural Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $303,690 or more.
- Focus on the 4Cs that matter most to you. Color and clarity grades drive price more than cut in many segments, but cut affects sparkle the most.
- The median price of $58,241 is a useful benchmark. If you see a deal significantly below this, verify the retailer's reputation and return policy.
- Consider eye-clean alternatives. Moving one clarity grade down (e.g., VS2 to SI1) can save 10-15% with no visible difference to the naked eye.
- Compare natural vs. lab-grown options for the same carat and shape. Lab-grown diamonds are chemically identical but often 30-50% less expensive.
- Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
- Cushion cuts come in standard and modified brilliant varieties. Modified brilliants tend to show more fire, while standard cushions have broader facets.
Frequently Asked Questions
We currently track 239 comparable stones in the 4.00–4.49 carat benchmark range. Prices start around $2,360 and go up to $306,050.
Based on the latest market data, the average asking price is about $60,205 with a median around $58,241.
The observed spread is roughly $303,690 across tracked listings, which is about 99.2% from highest to lowest offer in the 4.00–4.49 carat benchmark range.
We refresh pricing data daily so these pages stay current with market changes.
Based on completed market data, the fair market benchmark is $60,205. The median price is $58,241, so offers between the median and fair benchmark can be reasonable, while reputable listings below the median may be especially competitive.
We currently track this stone category across 10 online retailers, giving you a broad view of the competitive landscape.
For most buyers, color differences below G are hard to detect once set in a ring. Clarity grades of VS2 and above are typically eye-clean. Prioritize cut quality for maximum brilliance, then balance color and clarity based on your budget.
Retailer pricing strategies, overhead costs, and margin targets all contribute. The exact certified diamond can differ by $303,690 across sellers, which is why direct certified-diamond comparison is essential.
We match diamonds across retailers by their certification lab and certificate number. This means the prices you see are for the exact same physical diamond, not just stones with similar specs. It is a true apples-to-apples comparison.
Diamond prices fluctuate based on supply and demand. Our data refreshes regularly so you can track trends over time. Use the price range on this page as a benchmark and compare it to historical averages when available.
Diamond Terminology
- Carat
- A unit of weight for diamonds equal to 200 milligrams. Larger carat weights are exponentially rarer, which is why prices increase non-linearly with size.
- Cut
- Refers to how well a diamond's facets interact with light. Cut quality ranges from Ideal to Poor and is the single biggest factor affecting a diamond's brilliance.
- Color
- Grades a diamond's lack of color on a scale from D (colorless) to Z (light yellow). Grades D-F are considered colorless; G-J are near-colorless and offer good value.
- Clarity
- Measures the presence of internal inclusions or surface blemishes. Grades range from Flawless (FL) to Included (I3). Most inclusions in VS2 and above are invisible to the naked eye.
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Tracking Natural inventory for the 4.00–4.49 carat Cushion diamond benchmark.